[The development of morbidity and mortality encoding in the system of the Ministry of Internal Affairs of Russia].

Despite attempts of improving actual system of morbidity and mortality accounting, the study research established significant real data distortion. These differences do not allow to assess in fullness complete picture of actual morbidity and mortality. Hence, improvement of approaches to increasing efficiency of indices data registration. The study was carried out in 2017-2019 on the bases of medical organizations of the Ministry of Internal Affairs of Russia. The study assessed quality of encoding of morbidity of 28 061 case histories/out-patient records. The size needed to obtain reliable results was determined using the Lopez-Jimenez formula. The statistical data was processed by MS Excel and Statistica-6 software. The most common errors were associated with non-rubricated and incorrectly rubricated diagnoses (53.2%, n = 2860). The second most common error in the structure of incorrectly formulated diagnosis was associated with using non-informative terms (14.6%, n = 785). The errors regarding non-observance of the ICD 10 revision requirements followed resulting in using and wordings not corresponding to modern classification (10.6%, n = 568). A number of errors was associated with unspecified localization of process (3.6%, n = 195) and other rarely occurring causes (2.6%, n = 139). The results of study permitted to conclude that one of the most promising directions of modernization of the encoding system is the automated encoding system.